Shaft material: 40Cr(ASTM A5140) or 45#(ASTM 1045) steel. Helix plate: ASTM A36 hot rolled plate, available in 3/8\'\' and 1/2\'\' thickness. All helix leading edges sharpened and rock cut and 45 degrees. Corrosion protection: ASTM A153, hot dipped zinc coating. Efficient ...
Bar Material: 40Cr or 45# steel, round corner 5mm radius Helix Plate material conforms to ASTM A36 hot rolled plate helices thickness are available in 3/8” and 1/2” All helix leading edges sharpened and rock cut and 45 degrees. Corrosion protection to conform to ASTM A153 ...